source/lighttypes.h

   1 /* This file is part of Shapes.
   2  *
   3  * Shapes is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * any later version.
   7  *
   8  * Shapes is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with Shapes.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  * Copyright 2008 Henrik Tidefelt
  17  */
  18
  19 #pragma once
  20
  21 #include "Shapes_Lang_decls.h"
  22
  23 #include "refcount.h"
  24 #include "shapesvalue.h"
  25 #include "statetypes.h"
  26 #include "functiontypes.h"
  27 #include "elementarycoords.h"
  28
  29 namespace Shapes
  30 {
  31         namespace Lang
  32         {
  33
  34         class SpecularReflection : public Lang::Value
  35         {
  36         public:
  37                 SpecularReflection( );
  38                 virtual ~SpecularReflection( );
  39                 virtual double weight( ) const = 0;
  40                 virtual RefCountPtr< const Lang::SpecularReflection > multiply( double scalar ) const = 0;
  41                 virtual Concrete::Gray illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::GrayLight & light ) const = 0;
  42                 virtual Concrete::RGB illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::RGBLight & light ) const = 0;
  43                 virtual Concrete::Gray illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Concrete::Gray & autoIntensity ) const = 0;
  44                 virtual Concrete::RGB illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Concrete::RGB & autoIntensity ) const = 0;
  45                 TYPEINFODECL;
  46                 DISPATCHDECL;
  47                 virtual void gcMark( Kernel::GCMarkedSet & marked );    // This method resides here since we know (that today) no sub classes need to do gcMark.
  48         };
  49
  50         class SpecularReflectionTerm : public Lang::SpecularReflection
  51         {
  52                 double weight_;
  53                 double exponent_;
  54         public:
  55                 SpecularReflectionTerm( double weight, double exponent );
  56                 virtual ~SpecularReflectionTerm( );
  57                 virtual double weight( ) const;
  58                 virtual RefCountPtr< const Lang::SpecularReflection > multiply( double scalar ) const;
  59                 virtual Concrete::Gray illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::GrayLight & light ) const;
  60                 virtual Concrete::RGB illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::RGBLight & light ) const;
  61                 virtual Concrete::Gray illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Concrete::Gray & autoIntensity ) const;
  62                 virtual Concrete::RGB illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Concrete::RGB & autoIntensity ) const;
  63                 double exponent( ) const;
  64         };
  65
  66         class SpecularReflectionPair : public Lang::SpecularReflection
  67         {
  68                 RefCountPtr< const Lang::SpecularReflection > car_;
  69                 RefCountPtr< const Lang::SpecularReflection > cdr_;
  70         public:
  71                 SpecularReflectionPair( const RefCountPtr< const Lang::SpecularReflection > & car, const RefCountPtr< const Lang::SpecularReflection > & cdr );
  72                 ~SpecularReflectionPair( );
  73                 virtual double weight( ) const;
  74                 virtual RefCountPtr< const Lang::SpecularReflection > multiply( double scalar ) const;
  75                 virtual Concrete::Gray illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::GrayLight & light ) const;
  76                 virtual Concrete::RGB illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::RGBLight & light ) const;
  77                 virtual Concrete::Gray illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Concrete::Gray & autoIntensity ) const;
  78                 virtual Concrete::RGB illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Concrete::RGB & autoIntensity ) const;
  79         };
  80
  81         class SpecularReflectionNull : public Lang::SpecularReflection
  82         {
  83         public:
  84                 SpecularReflectionNull( );
  85                 ~SpecularReflectionNull( );
  86                 virtual double weight( ) const;
  87                 virtual RefCountPtr< const Lang::SpecularReflection > multiply( double scalar ) const;
  88                 virtual Concrete::Gray illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::GrayLight & light ) const;
  89                 virtual Concrete::RGB illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::RGBLight & light ) const;
  90                 virtual Concrete::Gray illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Concrete::Gray & autoIntensity ) const;
  91                 virtual Concrete::RGB illuminate( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Concrete::RGB & autoIntensity ) const;
  92         };
  93
  94         class LightSource : public Lang::Geometric3D
  95         {
  96         protected:
  97                 bool shadows_;
  98         public:
  99                 LightSource( bool shadows );
 100                 virtual ~LightSource( );
 101                 virtual bool shadows( ) const { return shadows_; }
 102                 virtual RefCountPtr< const Lang::Geometric3D > transformed( const Lang::Transform3D & tf, const RefCountPtr< const Lang::Geometric3D > & self ) const;
 103                 virtual RefCountPtr< const Lang::Geometric2D > to2D( const Kernel::PassedDyn & dyn, const RefCountPtr< const Lang::Geometric3D > & self ) const;
 104                 virtual RefCountPtr< const Lang::LightSource > typed_transformed( const Lang::Transform3D & tf ) const = 0;
 105                 virtual bool isGray( ) const = 0;
 106                 TYPEINFODECL;
 107                 virtual void gcMark( Kernel::GCMarkedSet & marked );    // This method resides here since we know (that today) no sub classes need to do gcMark.
 108                 DISPATCHDECL;
 109         };
 110
 111         class GrayLight : public Lang::LightSource
 112         {
 113         public:
 114                 GrayLight( bool shadows );
 115                 virtual ~GrayLight( );
 116                 virtual bool isGray( ) const { return true; };
 117                 virtual Concrete::RGB illuminateRGB( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const = 0;
 118                 virtual Concrete::Gray illuminateGray( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const = 0;
 119         };
 120
 121         class RGBLight : public Lang::LightSource
 122         {
 123         public:
 124                 RGBLight( bool shadows );
 125                 virtual ~RGBLight( );
 126                 virtual bool isGray( ) const { return false; };
 127                 virtual Concrete::RGB illuminateRGB( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const = 0;
 128         };
 129
 130         class AmbientLightGray : public GrayLight
 131         {
 132                 Concrete::Gray intensity_;
 133         public:
 134                 AmbientLightGray( const Concrete::Gray & intensity );
 135                 virtual ~AmbientLightGray( );
 136                 virtual RefCountPtr< const Lang::LightSource > typed_transformed( const Lang::Transform3D & tf ) const;
 137                 virtual Concrete::RGB illuminateRGB( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 138                 virtual Concrete::Gray illuminateGray( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 139         };
 140
 141         class AmbientLightRGB : public RGBLight
 142         {
 143                 Concrete::RGB intensity_;
 144         public:
 145                 AmbientLightRGB( const Concrete::RGB & intensity );
 146                 virtual ~AmbientLightRGB( );
 147                 virtual RefCountPtr< const Lang::LightSource > typed_transformed( const Lang::Transform3D & tf ) const;
 148                 virtual Concrete::RGB illuminateRGB( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 149         };
 150
 151         class SpecularLightGray : public GrayLight
 152         {
 153                 Concrete::Coords3D p_;
 154                 Concrete::Gray intensity_;
 155                 Concrete::Length intensityRadius_;
 156         public:
 157                 SpecularLightGray( const Concrete::Coords3D & p, const Concrete::Gray & intensity, Concrete::Length intensityRadius, bool shadows );
 158                 virtual ~SpecularLightGray( );
 159                 virtual RefCountPtr< const Lang::LightSource > typed_transformed( const Lang::Transform3D & tf ) const;
 160                 virtual Concrete::RGB illuminateRGB( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 161                 virtual Concrete::Gray illuminateGray( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 162         };
 163
 164         class SpecularLightRGB : public RGBLight
 165         {
 166                 Concrete::Coords3D p_;
 167                 Concrete::RGB intensity_;
 168                 Concrete::Length intensityRadius_;
 169         public:
 170                 SpecularLightRGB( const Concrete::Coords3D & p, const Concrete::RGB & intensity, Concrete::Length intensityRadius, bool shadows );
 171                 virtual ~SpecularLightRGB( );
 172                 virtual RefCountPtr< const Lang::LightSource > typed_transformed( const Lang::Transform3D & tf ) const;
 173                 virtual Concrete::RGB illuminateRGB( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 174         };
 175
 176         class DistantLightGray : public GrayLight
 177         {
 178                 Concrete::UnitFloatTriple rHatLight_;
 179                 Concrete::Gray intensity_;
 180         public:
 181                 DistantLightGray( const Concrete::UnitFloatTriple & rHatLight, const Concrete::Gray & intensity, bool shadows );
 182                 virtual ~DistantLightGray( );
 183                 virtual RefCountPtr< const Lang::LightSource > typed_transformed( const Lang::Transform3D & tf ) const;
 184                 virtual Concrete::RGB illuminateRGB( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 185                 virtual Concrete::Gray illuminateGray( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 186         };
 187
 188         class DistantLightRGB : public RGBLight
 189         {
 190                 Concrete::UnitFloatTriple rHatLight_;
 191                 Concrete::RGB intensity_;
 192         public:
 193                 DistantLightRGB( const Concrete::UnitFloatTriple & rHatLight, const Concrete::RGB & intensity, bool shadows );
 194                 virtual ~DistantLightRGB( );
 195                 virtual RefCountPtr< const Lang::LightSource > typed_transformed( const Lang::Transform3D & tf ) const;
 196                 virtual Concrete::RGB illuminateRGB( const Concrete::Coords3D & point, const Concrete::Length eyez, const Concrete::UnitFloatTriple & unitNormal, const Lang::SpecularReflectionTerm & refl ) const;
 197         };
 198
 199         class LightGroup : public Geometric3D
 200         {
 201         public:
 202                 LightGroup( );
 203                 virtual ~LightGroup( );
 204                 virtual RefCountPtr< const Lang::LightGroup > typed_transformed( const Lang::Transform3D & tf, const RefCountPtr< const Lang::LightGroup > & self ) const = 0;
 205                 virtual RefCountPtr< const Lang::Geometric3D > transformed( const Lang::Transform3D & tf, const RefCountPtr< const Lang::Geometric3D > & self ) const;
 206                 virtual RefCountPtr< const Lang::Geometric2D > to2D( const Kernel::PassedDyn & dyn, const RefCountPtr< const Lang::Geometric3D > & self ) const;
 207                 virtual bool isNull( ) const = 0;
 208                 virtual bool containsRGB( ) const = 0;
 209                 TYPEINFODECL;
 210                 DISPATCHDECL;
 211         };
 212
 213         class LightNull : public LightGroup
 214         {
 215         public:
 216                 LightNull( );
 217                 virtual ~LightNull( );
 218                 virtual RefCountPtr< const Lang::LightGroup > typed_transformed( const Lang::Transform3D & tf, const RefCountPtr< const Lang::LightGroup > & self ) const;
 219                 virtual bool isNull( ) const;
 220                 virtual bool containsRGB( ) const;
 221                 virtual void gcMark( Kernel::GCMarkedSet & marked );
 222         };
 223
 224         class LightPair : public LightGroup
 225         {
 226                 RefCountPtr< const Lang::LightSource > car_;
 227                 RefCountPtr< const Lang::LightGroup > cdr_;
 228         public:
 229                 LightPair( const RefCountPtr< const Lang::LightSource > & car, const RefCountPtr< const Lang::LightGroup > & cdr );
 230                 virtual ~LightPair( );
 231                 RefCountPtr< const Lang::LightSource > car( ) const;
 232                 RefCountPtr< const Lang::LightGroup > cdr( ) const;
 233                 virtual RefCountPtr< const Lang::LightGroup > typed_transformed( const Lang::Transform3D & tf, const RefCountPtr< const Lang::LightGroup > & self ) const;
 234                 virtual bool isNull( ) const;
 235                 virtual bool containsRGB( ) const;
 236                 virtual void gcMark( Kernel::GCMarkedSet & marked );
 237         };
 238
 239         }
 240 }